Convert AccountViewHolder from Java to Kotlin (#3044)

* Convert AccountViewHolder from Java to Kotlin

Use view binding in the converted code, which requires small changes in code
that calls constructors.

Pass showBotOverlays as a parameter, rather than having the code reach in to
the shared preferences, fixing a layering violation. This affects callers
and classes derived from AccountAdapter.

* Use 2-arg getString

* Simplify setting bot badge indicator

- Specify the drawable in the XML
- Use visible() to set visibility
- Rename ID to account_bot_badge to make it clearer that this is all it is for

* Use lateinit to avoid needing !! later

app/src/main/java/com/keylesspalace/tusky/adapter/FollowRequestViewHolder.kt

@@ -34,7 +34,12 @@ class FollowRequestViewHolder(
     private val showHeader: Boolean
 ) : RecyclerView.ViewHolder(binding.root) {
 
-    fun setupWithAccount(account: TimelineAccount, animateAvatar: Boolean, animateEmojis: Boolean) {
+    fun setupWithAccount(
+        account: TimelineAccount,
+        animateAvatar: Boolean,
+        animateEmojis: Boolean,
+        showBotOverlay: Boolean
+    ) {
         val wrappedName = account.name.unicodeWrap()
         val emojifiedName: CharSequence = wrappedName.emojify(account.emojis, itemView, animateEmojis)
         binding.displayNameTextView.text = emojifiedName